<!doctype html>
<html>

	<head>
		<meta charset="utf-8">
		<title></title>
		<meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1,maximum-scale=1,user-scalable=no" />
		<link href="css/mui.css" rel="stylesheet" />
		<style>
		img{
			width: 100%;
		}</style>
	</head>

	<body>
		<button onclick="f2()">点击退出</button>
		<img id="a"  onclick="f1()"  src="img/G1.jpg" />
		<script src="js/mui.js"></script>
		<script type="text/javascript">
		function f1(){

			var img1 = document.getElementById("a");
			img1.src = "img/G2.jpg";

		}
		function f2(){
			window.location.href = "index.html"
			
		
		}
			mui.init()
		</script>
	</body>

</html>
